Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.

User Name:

Password

Please enter a password for your user account. Note that passwords are case-sensitive.

Password:

Confirm Password:

Email Address

Please enter a valid email address for yourself.

Email Address:

Log-in

User Name

Remember Me?

Password

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Additional Options

Miscellaneous Options

Automatically parse links in text

Automatically embed media (requires automatic parsing of links in text to be on).

Automatically retrieve titles from external links

Topic Review (Newest First)

06-10-2013 07:39 AM

Coolrider

Steam holes???

Quote:

Originally Posted by gamedawg03

I am about to get my 406 built. I have brodix ik 200 heads from my 383 do i need to get steam holes drilled in them thanks

I went the other way. I built a 434 using a dart block.Way more horse power than I need,not as much as I want,lol. a very mild 434 can make north of 500 horse power and have a fairly smooth idle.They can also make 650 horse power and be very street able using a mild gear.

01-26-2013 04:31 PM

gamedawg03

Thanks for all the info. I just wanna do all my homework before i spend alot of money because its to easy to spend to hard to make back

01-26-2013 04:20 PM

cobalt327

Quote:

Originally Posted by cobalt327

Unless you use a custom crank having the 350 sbc stroke and 400 main journal diameter, you'll have to use thick spacer bearings or spacers behind regular 400 bearings.

Should read: "Unless you use a custom crank having the 350 sbc stroke and 400 main journal diameter, you'll have to use thick spacer bearings or spacers behind regular 350 bearings."

01-26-2013 04:14 PM

techinspector1

7cc flat-tops with a 76cc chamber will make 10.0:1 SCR.
18cc D-cups with a 76cc chamber will make 9.0:1 SCR
30cc D-cups with a 76cc chamber will make 8.3:1 SCR
7cc flat-tops with a 64cc chamber will make 11.4:1 SCR
18cc D-cups with a 64cc chamber will make 10.2:1 SCR (This is where I'd go for pump gas and 64cc aluminum heads)
30cc D-cups with a 64cc chamber will make 9.1:1 SCR

01-26-2013 11:32 AM

gamedawg03

Someone told me a 377 just a high rpm motor but u can make more power with less rpm on 406 or 421

01-26-2013 11:24 AM

cobalt327

Forget the 377. If you have a good 400 sbc block, build a 400.

The shorter stroke of the 350 crank in a 400 block looks good on paper, and can make a good displacement limited race engine. But for a street vehicle there's just no point in giving up ~25 ci.

Unless you use a custom crank having the 350 sbc stroke and 400 main journal diameter, you'll have to use thick spacer bearings or spacers behind regular 400 bearings. Neither of which are as as good as using a normal insert and the correct journal size that matches the main saddles of the block IMO.

01-26-2013 10:57 AM

gamedawg03

The guy at the machine shop said do a 377 instead of a 406 any info on 377

01-25-2013 02:03 PM

gamedawg03

Quote:

Originally Posted by Deathmunchy

Since this topic is here. Let me know how your engine runs. I'm getting these heads as well and I've seen a few reviews of them but no ongoing discussions.

I really liked them on my 383 straight out the box vey well

01-25-2013 04:29 AM

Deathmunchy

Since this topic is here. Let me know how your engine runs. I'm getting these heads as well and I've seen a few reviews of them but no ongoing discussions.

01-22-2013 11:56 PM

malc

I have a 350 so steamholes are not an issue.
These are my IK200 heads check them out for steamholes.
Click the pic to enlarge it.

01-22-2013 11:49 PM

malc

Quote:

Originally Posted by techinspector1

Your statement is misleading. Looks like to me what they are actually saying is that the heads are manufactured with holes that match up with the holes in the block and that you must make sure the holes are drilled in the gaskets. Read it for yourself......

Q. Do you recommend steam holes on BRODIX heads?
A. No, the BRODIX water jacket is more efficient than previous heads. Just make sure all holes are properly lined up and drilled in head gaskets to efficiently pass water.

My statement is not misleading, they say no steamholes.
They do not say the heads already have steamholes, I read it that all the regular holes for water are checked to be lined up and clear.
Nowhere does it say there are steamholes in existence.

Q. Do you recommend steam holes on BRODIX heads?
A. No, the BRODIX water jacket is more efficient than previous heads. Just make sure all holes are properly lined up and drilled in head gaskets to efficiently pass water.

Anyway the original poster completely ignored my post so what do I care how you read it ?

01-22-2013 11:45 PM

1Gary

Well they changed their advise.

01-22-2013 11:05 PM

cobalt327

Brodix says no steam holes. Period. That was confirmed to me some time ago. What is being talked about are the head gasket/block coolant passages, in some cases they don't line up as well as they could and need to be located better. There are also things to look out for on the head gaskets, as shown here: Small Block 400 Cooling Tricks.

FWIW, Joe Sherman doesn't use them. But he'll gladly do them for others. For a fee, of course.

As far as a 325 hp 10.25:1 sbc LS3 2bbl 400, I'll have to pass on that one. lol Except to say the only engine I know of that comes close to that was a 402 BBC. Another odd engine was the 265 hp bbc 396/2bbl.

Your statement is misleading. Looks like to me what they are actually saying is that the heads are manufactured with holes that match up with the holes in the block and that you must make sure the holes are drilled in the gaskets. Read it for yourself......

Q. Do you recommend steam holes on BRODIX heads?
A. No, the BRODIX water jacket is more efficient than previous heads. Just make sure all holes are properly lined up and drilled in head gaskets to efficiently pass water.

This thread has more than 15 replies.
Click here to review the whole thread.